./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e93016ff57c45c3cae283be4b49e01d237dbbda4f83cf7a9bfcfac37d4c97276 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:12:38,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:12:38,836 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:12:38,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:12:38,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:12:38,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:12:38,864 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:12:38,864 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:12:38,865 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:12:38,865 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:12:38,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:12:38,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:12:38,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:12:38,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:12:38,867 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:12:38,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:12:38,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:12:38,868 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:12:38,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:12:38,869 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:12:38,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:12:38,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:12:38,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:12:38,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:12:38,874 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:12:38,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:12:38,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:12:38,875 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:12:38,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:12:38,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:12:38,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:12:38,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:12:38,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:12:38,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:12:38,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:12:38,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:12:38,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:12:38,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:12:38,877 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:12:38,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:12:38,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:12:38,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:12:38,880 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e93016ff57c45c3cae283be4b49e01d237dbbda4f83cf7a9bfcfac37d4c97276 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:12:39,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:12:39,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:12:39,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:12:39,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:12:39,201 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:12:39,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c [2024-09-12 19:12:40,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:12:40,854 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:12:40,854 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c [2024-09-12 19:12:40,863 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/d21ac60c7/3f19dd92f5a54cdd8d68ca112e96d0da/FLAG685a60b48 [2024-09-12 19:12:40,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/d21ac60c7/3f19dd92f5a54cdd8d68ca112e96d0da [2024-09-12 19:12:40,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:12:40,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:12:40,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:12:40,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:12:40,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:12:40,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:12:40" (1/1) ... [2024-09-12 19:12:40,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a410cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:40, skipping insertion in model container [2024-09-12 19:12:40,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:12:40" (1/1) ... [2024-09-12 19:12:40,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:12:41,094 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c[525,538] [2024-09-12 19:12:41,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:12:41,131 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:12:41,142 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c[525,538] [2024-09-12 19:12:41,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:12:41,174 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:12:41,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41 WrapperNode [2024-09-12 19:12:41,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:12:41,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:12:41,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:12:41,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:12:41,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,206 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:12:41,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:12:41,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:12:41,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:12:41,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:12:41,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,219 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,234 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:12:41,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:12:41,253 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:12:41,253 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:12:41,253 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:12:41,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (1/1) ... [2024-09-12 19:12:41,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:12:41,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:41,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:12:41,296 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:12:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:12:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:12:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:12:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:12:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:12:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:12:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:12:41,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:12:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:12:41,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:12:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:12:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:12:41,403 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:12:41,405 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:12:41,757 INFO L? ?]: Removed 83 outVars from TransFormulas that were not future-live. [2024-09-12 19:12:41,758 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:12:41,792 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:12:41,794 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:12:41,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:12:41 BoogieIcfgContainer [2024-09-12 19:12:41,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:12:41,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:12:41,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:12:41,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:12:41,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:12:40" (1/3) ... [2024-09-12 19:12:41,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55adb675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:12:41, skipping insertion in model container [2024-09-12 19:12:41,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:41" (2/3) ... [2024-09-12 19:12:41,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55adb675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:12:41, skipping insertion in model container [2024-09-12 19:12:41,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:12:41" (3/3) ... [2024-09-12 19:12:41,806 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound5.c [2024-09-12 19:12:41,822 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:12:41,823 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2024-09-12 19:12:41,879 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:12:41,886 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f3ad750, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:12:41,886 INFO L337 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-09-12 19:12:41,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 46 states have (on average 1.7826086956521738) internal successors, (82), 77 states have internal predecessors, (82), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:12:41,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 19:12:41,896 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:41,897 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:41,898 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:41,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:41,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1329720400, now seen corresponding path program 1 times [2024-09-12 19:12:41,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:41,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770919063] [2024-09-12 19:12:41,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:41,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:42,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:12:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:42,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:12:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:42,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:12:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:42,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:12:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:42,096 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:42,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:42,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770919063] [2024-09-12 19:12:42,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770919063] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:42,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:42,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:12:42,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598856338] [2024-09-12 19:12:42,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:42,107 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:12:42,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:42,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:12:42,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:12:42,132 INFO L87 Difference]: Start difference. First operand has 89 states, 46 states have (on average 1.7826086956521738) internal successors, (82), 77 states have internal predecessors, (82), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:12:42,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:42,182 INFO L93 Difference]: Finished difference Result 172 states and 190 transitions. [2024-09-12 19:12:42,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:12:42,184 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2024-09-12 19:12:42,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:42,192 INFO L225 Difference]: With dead ends: 172 [2024-09-12 19:12:42,192 INFO L226 Difference]: Without dead ends: 85 [2024-09-12 19:12:42,195 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:12:42,197 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:42,198 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:12:42,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-09-12 19:12:42,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-09-12 19:12:42,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 44 states have (on average 1.7272727272727273) internal successors, (76), 75 states have internal predecessors, (76), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:12:42,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2024-09-12 19:12:42,241 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 24 [2024-09-12 19:12:42,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:42,241 INFO L474 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2024-09-12 19:12:42,241 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:12:42,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:42,245 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2024-09-12 19:12:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 19:12:42,247 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:42,247 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:42,247 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:12:42,248 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:42,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:42,248 INFO L85 PathProgramCache]: Analyzing trace with hash 444284118, now seen corresponding path program 1 times [2024-09-12 19:12:42,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:42,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472259037] [2024-09-12 19:12:42,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:42,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:42,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591971592] [2024-09-12 19:12:42,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:42,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:42,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:42,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:42,283 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:12:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:42,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:12:42,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:42,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:42,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:42,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472259037] [2024-09-12 19:12:42,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:42,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591971592] [2024-09-12 19:12:42,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591971592] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:42,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:12:42,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:12:42,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756998099] [2024-09-12 19:12:42,659 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:42,660 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:12:42,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:12:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:12:42,662 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:42,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:42,958 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2024-09-12 19:12:42,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:12:42,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 24 [2024-09-12 19:12:42,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:42,960 INFO L225 Difference]: With dead ends: 85 [2024-09-12 19:12:42,960 INFO L226 Difference]: Without dead ends: 83 [2024-09-12 19:12:42,960 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:12:42,961 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 39 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:42,962 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 123 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:12:42,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-09-12 19:12:42,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-09-12 19:12:42,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 73 states have internal predecessors, (74), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:12:42,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 86 transitions. [2024-09-12 19:12:42,976 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 86 transitions. Word has length 24 [2024-09-12 19:12:42,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:42,977 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 86 transitions. [2024-09-12 19:12:42,977 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:42,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 86 transitions. [2024-09-12 19:12:42,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:12:42,978 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:42,978 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:42,995 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 19:12:43,182 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:43,183 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:43,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:43,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1420994015, now seen corresponding path program 1 times [2024-09-12 19:12:43,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:43,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437279978] [2024-09-12 19:12:43,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:43,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:43,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108876786] [2024-09-12 19:12:43,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:43,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:43,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:43,220 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:43,232 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:12:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:43,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:12:43,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:43,421 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:43,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:43,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:43,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437279978] [2024-09-12 19:12:43,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:43,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108876786] [2024-09-12 19:12:43,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108876786] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:43,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:12:43,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:12:43,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059556919] [2024-09-12 19:12:43,505 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:43,506 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:12:43,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:43,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:12:43,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:12:43,508 INFO L87 Difference]: Start difference. First operand 83 states and 86 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:43,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:43,752 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2024-09-12 19:12:43,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:12:43,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 27 [2024-09-12 19:12:43,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:43,755 INFO L225 Difference]: With dead ends: 83 [2024-09-12 19:12:43,755 INFO L226 Difference]: Without dead ends: 79 [2024-09-12 19:12:43,755 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:12:43,757 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 75 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:43,757 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 125 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:12:43,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-09-12 19:12:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-09-12 19:12:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 69 states have internal predecessors, (70), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:12:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2024-09-12 19:12:43,771 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 27 [2024-09-12 19:12:43,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:43,771 INFO L474 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2024-09-12 19:12:43,771 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:43,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:43,772 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2024-09-12 19:12:43,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 19:12:43,773 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:43,773 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:43,789 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 19:12:43,976 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:43,977 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:43,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:43,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1101141439, now seen corresponding path program 1 times [2024-09-12 19:12:43,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:43,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120319568] [2024-09-12 19:12:43,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:43,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:44,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452260756] [2024-09-12 19:12:44,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:44,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:44,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:44,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:44,008 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:12:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:44,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:12:44,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:44,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:44,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:44,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120319568] [2024-09-12 19:12:44,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:44,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452260756] [2024-09-12 19:12:44,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452260756] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:44,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:12:44,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:12:44,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011028304] [2024-09-12 19:12:44,538 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:44,538 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:12:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:44,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:12:44,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:12:44,539 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:44,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:44,777 INFO L93 Difference]: Finished difference Result 119 states and 136 transitions. [2024-09-12 19:12:44,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:12:44,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2024-09-12 19:12:44,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:44,779 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:12:44,781 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 19:12:44,782 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:12:44,783 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 145 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:44,784 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 140 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:12:44,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 19:12:44,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 100. [2024-09-12 19:12:44,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 64 states have (on average 1.578125) internal successors, (101), 89 states have internal predecessors, (101), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:44,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2024-09-12 19:12:44,811 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 28 [2024-09-12 19:12:44,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:44,812 INFO L474 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2024-09-12 19:12:44,812 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:44,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2024-09-12 19:12:44,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 19:12:44,813 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:44,813 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:44,828 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 19:12:45,013 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:45,014 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:45,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:45,014 INFO L85 PathProgramCache]: Analyzing trace with hash 224353827, now seen corresponding path program 1 times [2024-09-12 19:12:45,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:45,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193666774] [2024-09-12 19:12:45,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:45,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:45,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853293948] [2024-09-12 19:12:45,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:45,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:45,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:45,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:45,036 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:12:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:45,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:12:45,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:45,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:45,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:45,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193666774] [2024-09-12 19:12:45,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:45,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853293948] [2024-09-12 19:12:45,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853293948] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:45,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:12:45,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:12:45,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160105080] [2024-09-12 19:12:45,312 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:45,312 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:12:45,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:45,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:12:45,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:12:45,313 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:45,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:45,577 INFO L93 Difference]: Finished difference Result 119 states and 132 transitions. [2024-09-12 19:12:45,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:12:45,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2024-09-12 19:12:45,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:45,578 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:12:45,579 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 19:12:45,579 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:12:45,580 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 209 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:45,580 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 125 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:12:45,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 19:12:45,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 103. [2024-09-12 19:12:45,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 67 states have (on average 1.537313432835821) internal successors, (103), 92 states have internal predecessors, (103), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:45,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2024-09-12 19:12:45,597 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 29 [2024-09-12 19:12:45,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:45,598 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2024-09-12 19:12:45,598 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:45,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:45,598 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2024-09-12 19:12:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 19:12:45,599 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:45,599 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:45,617 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:12:45,803 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:45,804 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:45,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:45,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1634965885, now seen corresponding path program 1 times [2024-09-12 19:12:45,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:45,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723462499] [2024-09-12 19:12:45,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:45,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:46,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:12:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:46,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:12:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:46,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:12:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:46,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:12:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:46,227 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:46,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:46,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723462499] [2024-09-12 19:12:46,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723462499] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:46,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684362559] [2024-09-12 19:12:46,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:46,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:46,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:46,232 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:46,237 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:12:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:46,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:12:46,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:46,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:56,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684362559] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:56,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:12:56,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-09-12 19:12:56,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217958450] [2024-09-12 19:12:56,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:56,335 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:12:56,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:56,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:12:56,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=81, Unknown=3, NotChecked=0, Total=110 [2024-09-12 19:12:56,336 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:12:56,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:56,989 INFO L93 Difference]: Finished difference Result 116 states and 128 transitions. [2024-09-12 19:12:56,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:12:56,990 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 30 [2024-09-12 19:12:56,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:56,991 INFO L225 Difference]: With dead ends: 116 [2024-09-12 19:12:56,991 INFO L226 Difference]: Without dead ends: 114 [2024-09-12 19:12:56,991 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=50, Invalid=129, Unknown=3, NotChecked=0, Total=182 [2024-09-12 19:12:56,992 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 142 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:56,992 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 230 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:12:56,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-09-12 19:12:57,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 102. [2024-09-12 19:12:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 67 states have (on average 1.492537313432836) internal successors, (100), 91 states have internal predecessors, (100), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:57,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2024-09-12 19:12:57,016 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 30 [2024-09-12 19:12:57,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:57,016 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2024-09-12 19:12:57,016 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:12:57,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:57,017 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2024-09-12 19:12:57,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 19:12:57,018 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:57,018 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:57,033 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:12:57,218 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:12:57,219 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:57,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:57,219 INFO L85 PathProgramCache]: Analyzing trace with hash 755817157, now seen corresponding path program 1 times [2024-09-12 19:12:57,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:57,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486313523] [2024-09-12 19:12:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:57,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:12:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:12:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:12:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:12:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,294 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:57,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:57,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486313523] [2024-09-12 19:12:57,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486313523] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:57,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:57,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:12:57,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282438402] [2024-09-12 19:12:57,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:57,298 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:12:57,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:57,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:12:57,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:57,299 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:57,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:57,656 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2024-09-12 19:12:57,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:12:57,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-09-12 19:12:57,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:57,659 INFO L225 Difference]: With dead ends: 115 [2024-09-12 19:12:57,659 INFO L226 Difference]: Without dead ends: 113 [2024-09-12 19:12:57,659 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:12:57,659 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 87 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:57,660 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 108 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:12:57,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-09-12 19:12:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2024-09-12 19:12:57,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 67 states have (on average 1.462686567164179) internal successors, (98), 90 states have internal predecessors, (98), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:57,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2024-09-12 19:12:57,685 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 32 [2024-09-12 19:12:57,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:57,685 INFO L474 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2024-09-12 19:12:57,685 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:57,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:57,686 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2024-09-12 19:12:57,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 19:12:57,686 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:57,687 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:57,687 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:12:57,687 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:57,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:57,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1955495463, now seen corresponding path program 1 times [2024-09-12 19:12:57,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:57,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361814883] [2024-09-12 19:12:57,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:57,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:57,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169657087] [2024-09-12 19:12:57,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:57,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:57,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:57,697 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:57,701 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:12:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:12:57,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:57,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:12:57,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:57,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361814883] [2024-09-12 19:12:57,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:57,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169657087] [2024-09-12 19:12:57,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169657087] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:57,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:57,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:12:57,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84681462] [2024-09-12 19:12:57,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:57,925 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:12:57,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:57,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:12:57,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:12:57,926 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:58,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:58,241 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2024-09-12 19:12:58,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:12:58,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2024-09-12 19:12:58,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:58,243 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:12:58,243 INFO L226 Difference]: Without dead ends: 111 [2024-09-12 19:12:58,243 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:12:58,244 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:58,244 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 128 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:12:58,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-09-12 19:12:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 103. [2024-09-12 19:12:58,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 69 states have (on average 1.434782608695652) internal successors, (99), 92 states have internal predecessors, (99), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 113 transitions. [2024-09-12 19:12:58,268 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 113 transitions. Word has length 33 [2024-09-12 19:12:58,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:58,268 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 113 transitions. [2024-09-12 19:12:58,269 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:58,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:58,269 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 113 transitions. [2024-09-12 19:12:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:12:58,270 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:58,270 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:58,287 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:12:58,470 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:58,471 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:58,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:58,471 INFO L85 PathProgramCache]: Analyzing trace with hash 490817287, now seen corresponding path program 1 times [2024-09-12 19:12:58,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:58,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254653259] [2024-09-12 19:12:58,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:58,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:58,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [619055991] [2024-09-12 19:12:58,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:58,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:58,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:58,481 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:58,482 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:12:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:58,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:12:58,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:58,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:12:58,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:58,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254653259] [2024-09-12 19:12:58,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:58,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619055991] [2024-09-12 19:12:58,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619055991] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:58,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:58,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:12:58,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040321539] [2024-09-12 19:12:58,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:58,892 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:12:58,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:58,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:12:58,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:58,893 INFO L87 Difference]: Start difference. First operand 103 states and 113 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:59,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:59,059 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2024-09-12 19:12:59,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:12:59,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2024-09-12 19:12:59,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:59,061 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:12:59,061 INFO L226 Difference]: Without dead ends: 111 [2024-09-12 19:12:59,061 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:59,062 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 24 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:59,062 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 174 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:12:59,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-09-12 19:12:59,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2024-09-12 19:12:59,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 93 states have internal predecessors, (99), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:59,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2024-09-12 19:12:59,091 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 34 [2024-09-12 19:12:59,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:59,092 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2024-09-12 19:12:59,092 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:59,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:59,092 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2024-09-12 19:12:59,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:12:59,094 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:59,094 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:59,111 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:12:59,294 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:59,295 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:59,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:59,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1964533207, now seen corresponding path program 1 times [2024-09-12 19:12:59,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:59,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12779161] [2024-09-12 19:12:59,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:59,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:59,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125567180] [2024-09-12 19:12:59,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:59,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:59,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:59,307 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:59,313 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:12:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:59,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:12:59,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:59,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:12:59,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:59,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12779161] [2024-09-12 19:12:59,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:59,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125567180] [2024-09-12 19:12:59,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125567180] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:59,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:59,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:12:59,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493826060] [2024-09-12 19:12:59,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:59,426 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:12:59,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:59,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:12:59,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:59,427 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:59,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:59,671 INFO L93 Difference]: Finished difference Result 113 states and 118 transitions. [2024-09-12 19:12:59,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:12:59,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2024-09-12 19:12:59,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:59,672 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:12:59,672 INFO L226 Difference]: Without dead ends: 109 [2024-09-12 19:12:59,673 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:59,673 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:59,673 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 109 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:12:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-09-12 19:12:59,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2024-09-12 19:12:59,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 72 states have (on average 1.375) internal successors, (99), 95 states have internal predecessors, (99), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:59,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 113 transitions. [2024-09-12 19:12:59,697 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 113 transitions. Word has length 35 [2024-09-12 19:12:59,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:59,697 INFO L474 AbstractCegarLoop]: Abstraction has 106 states and 113 transitions. [2024-09-12 19:12:59,697 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:59,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:59,698 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 113 transitions. [2024-09-12 19:12:59,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 19:12:59,698 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:59,698 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:59,713 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 19:12:59,902 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:59,903 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:59,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:59,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1116337079, now seen corresponding path program 1 times [2024-09-12 19:12:59,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:59,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343880159] [2024-09-12 19:12:59,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:59,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:59,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694847332] [2024-09-12 19:12:59,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:59,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:59,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:59,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:59,924 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:12:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:59,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:12:59,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:00,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:13:00,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:00,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343880159] [2024-09-12 19:13:00,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:00,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694847332] [2024-09-12 19:13:00,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694847332] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:13:00,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:13:00,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 19:13:00,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619079238] [2024-09-12 19:13:00,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:13:00,072 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:13:00,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:00,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:13:00,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:13:00,073 INFO L87 Difference]: Start difference. First operand 106 states and 113 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:13:00,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:00,277 INFO L93 Difference]: Finished difference Result 115 states and 119 transitions. [2024-09-12 19:13:00,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:13:00,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2024-09-12 19:13:00,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:00,279 INFO L225 Difference]: With dead ends: 115 [2024-09-12 19:13:00,279 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 19:13:00,279 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:13:00,280 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 41 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:00,280 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 174 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:13:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 19:13:00,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-09-12 19:13:00,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 65 states have (on average 1.4) internal successors, (91), 88 states have internal predecessors, (91), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:13:00,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2024-09-12 19:13:00,308 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 40 [2024-09-12 19:13:00,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:00,308 INFO L474 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2024-09-12 19:13:00,308 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:13:00,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2024-09-12 19:13:00,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:13:00,309 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:00,309 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:00,328 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:13:00,512 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 19:13:00,512 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:00,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:00,512 INFO L85 PathProgramCache]: Analyzing trace with hash 871034181, now seen corresponding path program 1 times [2024-09-12 19:13:00,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:00,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675420190] [2024-09-12 19:13:00,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:00,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:00,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:13:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:00,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:13:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:00,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:13:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:00,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:13:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:00,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:13:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:00,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:00,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675420190] [2024-09-12 19:13:00,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675420190] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:13:00,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:13:00,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:13:00,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662158912] [2024-09-12 19:13:00,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:13:00,596 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:13:00,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:00,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:13:00,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:13:00,599 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:13:00,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:00,635 INFO L93 Difference]: Finished difference Result 102 states and 105 transitions. [2024-09-12 19:13:00,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:13:00,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-09-12 19:13:00,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:00,637 INFO L225 Difference]: With dead ends: 102 [2024-09-12 19:13:00,637 INFO L226 Difference]: Without dead ends: 100 [2024-09-12 19:13:00,637 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:13:00,638 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 1 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:00,638 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 145 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:13:00,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-09-12 19:13:00,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-09-12 19:13:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 88 states have internal predecessors, (89), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:13:00,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2024-09-12 19:13:00,657 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 43 [2024-09-12 19:13:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:00,657 INFO L474 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2024-09-12 19:13:00,658 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:13:00,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:00,658 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2024-09-12 19:13:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:13:00,658 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:00,659 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:00,659 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 19:13:00,659 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:00,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:00,659 INFO L85 PathProgramCache]: Analyzing trace with hash 631947275, now seen corresponding path program 1 times [2024-09-12 19:13:00,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:00,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617557043] [2024-09-12 19:13:00,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:00,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:00,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575429742] [2024-09-12 19:13:00,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:00,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:00,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:00,672 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:00,673 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:13:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:00,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:13:00,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:00,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:13:00,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:00,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617557043] [2024-09-12 19:13:00,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:00,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575429742] [2024-09-12 19:13:00,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575429742] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:13:00,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:13:00,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:13:00,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792803299] [2024-09-12 19:13:00,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:13:00,823 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:13:00,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:00,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:13:00,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:13:00,825 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:13:01,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:01,020 INFO L93 Difference]: Finished difference Result 103 states and 107 transitions. [2024-09-12 19:13:01,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:13:01,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2024-09-12 19:13:01,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:01,022 INFO L225 Difference]: With dead ends: 103 [2024-09-12 19:13:01,022 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 19:13:01,022 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:13:01,023 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 40 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:01,023 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 62 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:13:01,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 19:13:01,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-09-12 19:13:01,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 89 states have internal predecessors, (90), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:13:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 104 transitions. [2024-09-12 19:13:01,044 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 104 transitions. Word has length 49 [2024-09-12 19:13:01,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:01,044 INFO L474 AbstractCegarLoop]: Abstraction has 101 states and 104 transitions. [2024-09-12 19:13:01,044 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:13:01,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:01,045 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 104 transitions. [2024-09-12 19:13:01,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 19:13:01,045 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:01,045 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:01,061 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 19:13:01,249 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:13:01,250 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:01,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:01,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1884470851, now seen corresponding path program 1 times [2024-09-12 19:13:01,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:01,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412085434] [2024-09-12 19:13:01,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:01,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:01,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472402545] [2024-09-12 19:13:01,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:01,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:01,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:01,262 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:01,267 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:13:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:01,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:13:01,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:01,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:13:01,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:01,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412085434] [2024-09-12 19:13:01,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:01,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472402545] [2024-09-12 19:13:01,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472402545] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:13:01,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:13:01,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:13:01,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264307681] [2024-09-12 19:13:01,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:13:01,396 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:13:01,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:01,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:13:01,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:13:01,396 INFO L87 Difference]: Start difference. First operand 101 states and 104 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:13:01,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:01,556 INFO L93 Difference]: Finished difference Result 103 states and 106 transitions. [2024-09-12 19:13:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:13:01,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2024-09-12 19:13:01,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:01,558 INFO L225 Difference]: With dead ends: 103 [2024-09-12 19:13:01,558 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 19:13:01,558 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:13:01,558 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 38 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:01,559 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 78 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:13:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 19:13:01,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-09-12 19:13:01,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 90 states have internal predecessors, (91), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:13:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2024-09-12 19:13:01,580 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 50 [2024-09-12 19:13:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:01,580 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 105 transitions. [2024-09-12 19:13:01,580 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:13:01,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2024-09-12 19:13:01,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 19:13:01,581 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:01,581 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:01,596 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:13:01,781 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 19:13:01,782 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:01,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:01,782 INFO L85 PathProgramCache]: Analyzing trace with hash -753534493, now seen corresponding path program 1 times [2024-09-12 19:13:01,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:01,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225926115] [2024-09-12 19:13:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:01,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:01,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080025297] [2024-09-12 19:13:01,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:01,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:01,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:01,795 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:01,797 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:13:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:01,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:13:01,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:02,144 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:02,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:02,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:02,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225926115] [2024-09-12 19:13:02,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:02,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080025297] [2024-09-12 19:13:02,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080025297] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:02,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:02,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:13:02,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208906456] [2024-09-12 19:13:02,593 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:02,593 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:13:02,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:02,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:13:02,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:13:02,594 INFO L87 Difference]: Start difference. First operand 102 states and 105 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:03,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:03,031 INFO L93 Difference]: Finished difference Result 142 states and 157 transitions. [2024-09-12 19:13:03,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:13:03,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 53 [2024-09-12 19:13:03,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:03,032 INFO L225 Difference]: With dead ends: 142 [2024-09-12 19:13:03,032 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 19:13:03,033 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:13:03,033 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 107 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:03,033 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 170 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:13:03,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 19:13:03,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 123. [2024-09-12 19:13:03,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 87 states have (on average 1.4022988505747127) internal successors, (122), 110 states have internal predecessors, (122), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2024-09-12 19:13:03,060 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 53 [2024-09-12 19:13:03,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:03,061 INFO L474 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2024-09-12 19:13:03,061 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:03,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:03,061 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2024-09-12 19:13:03,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 19:13:03,061 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:03,062 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:03,078 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:13:03,265 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:13:03,265 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:03,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:03,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1884732735, now seen corresponding path program 1 times [2024-09-12 19:13:03,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:03,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263582242] [2024-09-12 19:13:03,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:03,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:03,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93593617] [2024-09-12 19:13:03,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:03,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:03,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:03,279 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:03,281 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:13:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:03,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:13:03,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:03,465 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:03,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:04,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:04,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263582242] [2024-09-12 19:13:04,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:04,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93593617] [2024-09-12 19:13:04,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93593617] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:04,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:04,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:13:04,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542904302] [2024-09-12 19:13:04,311 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:04,311 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:13:04,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:04,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:13:04,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:13:04,312 INFO L87 Difference]: Start difference. First operand 123 states and 138 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:13:04,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:04,505 INFO L93 Difference]: Finished difference Result 123 states and 138 transitions. [2024-09-12 19:13:04,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:13:04,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2024-09-12 19:13:04,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:04,506 INFO L225 Difference]: With dead ends: 123 [2024-09-12 19:13:04,506 INFO L226 Difference]: Without dead ends: 121 [2024-09-12 19:13:04,506 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:13:04,507 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 79 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:04,507 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 145 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:13:04,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-09-12 19:13:04,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-09-12 19:13:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 87 states have (on average 1.367816091954023) internal successors, (119), 108 states have internal predecessors, (119), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:04,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 135 transitions. [2024-09-12 19:13:04,541 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 135 transitions. Word has length 54 [2024-09-12 19:13:04,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:04,542 INFO L474 AbstractCegarLoop]: Abstraction has 121 states and 135 transitions. [2024-09-12 19:13:04,542 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:13:04,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:04,542 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 135 transitions. [2024-09-12 19:13:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:13:04,543 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:04,543 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:04,559 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 19:13:04,743 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:13:04,744 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:04,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:04,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1702827429, now seen corresponding path program 1 times [2024-09-12 19:13:04,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:04,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894851421] [2024-09-12 19:13:04,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:04,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:04,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807251189] [2024-09-12 19:13:04,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:04,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:04,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:04,765 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:04,772 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:13:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:04,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:13:04,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:05,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:06,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:06,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894851421] [2024-09-12 19:13:06,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:06,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807251189] [2024-09-12 19:13:06,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807251189] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:06,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:06,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 19:13:06,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474436709] [2024-09-12 19:13:06,023 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:06,024 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 19:13:06,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:06,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 19:13:06,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:13:06,025 INFO L87 Difference]: Start difference. First operand 121 states and 135 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:06,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:06,681 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2024-09-12 19:13:06,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:13:06,681 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 55 [2024-09-12 19:13:06,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:06,682 INFO L225 Difference]: With dead ends: 121 [2024-09-12 19:13:06,682 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 19:13:06,683 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:13:06,683 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 157 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:06,683 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 174 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:13:06,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 19:13:06,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-09-12 19:13:06,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 100 states have internal predecessors, (108), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:06,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 124 transitions. [2024-09-12 19:13:06,731 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 124 transitions. Word has length 55 [2024-09-12 19:13:06,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:06,731 INFO L474 AbstractCegarLoop]: Abstraction has 113 states and 124 transitions. [2024-09-12 19:13:06,731 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:06,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:06,732 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2024-09-12 19:13:06,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:13:06,732 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:06,732 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:06,748 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:13:06,932 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:13:06,933 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:06,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:06,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1073275845, now seen corresponding path program 1 times [2024-09-12 19:13:06,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:06,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215083795] [2024-09-12 19:13:06,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:06,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:06,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634487087] [2024-09-12 19:13:06,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:06,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:06,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:06,959 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:06,961 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:13:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:07,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:13:07,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:07,528 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:07,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:07,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:07,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215083795] [2024-09-12 19:13:07,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:07,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634487087] [2024-09-12 19:13:07,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634487087] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:07,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:07,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:13:07,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721229138] [2024-09-12 19:13:07,631 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:07,632 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:13:07,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:07,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:13:07,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:13:07,633 INFO L87 Difference]: Start difference. First operand 113 states and 124 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:07,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:07,927 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2024-09-12 19:13:07,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:13:07,927 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 58 [2024-09-12 19:13:07,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:07,930 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:13:07,930 INFO L226 Difference]: Without dead ends: 110 [2024-09-12 19:13:07,930 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:13:07,931 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 103 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:07,931 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 131 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:13:07,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-09-12 19:13:07,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-09-12 19:13:07,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 85 states have (on average 1.223529411764706) internal successors, (104), 97 states have internal predecessors, (104), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:07,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2024-09-12 19:13:07,983 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 58 [2024-09-12 19:13:07,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:07,984 INFO L474 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2024-09-12 19:13:07,984 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:07,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2024-09-12 19:13:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 19:13:07,985 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:07,985 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:08,003 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 19:13:08,185 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:13:08,186 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:08,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:08,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1088187095, now seen corresponding path program 1 times [2024-09-12 19:13:08,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:08,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761327642] [2024-09-12 19:13:08,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:08,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:08,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275459183] [2024-09-12 19:13:08,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:08,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:08,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:08,198 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:08,199 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:13:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:08,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 19:13:08,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:08,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:10,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:10,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761327642] [2024-09-12 19:13:10,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:10,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275459183] [2024-09-12 19:13:10,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275459183] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:10,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:10,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:13:10,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911744927] [2024-09-12 19:13:10,523 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:10,523 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:13:10,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:10,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:13:10,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:13:10,524 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:11,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:11,169 INFO L93 Difference]: Finished difference Result 128 states and 137 transitions. [2024-09-12 19:13:11,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:13:11,169 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 59 [2024-09-12 19:13:11,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:11,170 INFO L225 Difference]: With dead ends: 128 [2024-09-12 19:13:11,170 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 19:13:11,171 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:13:11,171 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 148 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:11,171 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 215 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:13:11,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 19:13:11,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2024-09-12 19:13:11,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 95 states have (on average 1.1894736842105262) internal successors, (113), 107 states have internal predecessors, (113), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:11,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 129 transitions. [2024-09-12 19:13:11,217 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 129 transitions. Word has length 59 [2024-09-12 19:13:11,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:11,218 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 129 transitions. [2024-09-12 19:13:11,218 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:11,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:11,218 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 129 transitions. [2024-09-12 19:13:11,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 19:13:11,219 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:11,219 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:11,235 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 19:13:11,423 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:11,424 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:11,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:11,424 INFO L85 PathProgramCache]: Analyzing trace with hash 625938503, now seen corresponding path program 1 times [2024-09-12 19:13:11,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:11,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248951893] [2024-09-12 19:13:11,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:11,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:11,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415981636] [2024-09-12 19:13:11,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:11,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:11,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:11,438 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:11,442 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:13:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:11,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:13:11,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:11,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:12,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248951893] [2024-09-12 19:13:12,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415981636] [2024-09-12 19:13:12,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415981636] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:12,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:12,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-09-12 19:13:12,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961657703] [2024-09-12 19:13:12,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:13:12,178 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:13:12,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:12,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:13:12,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:13:12,179 INFO L87 Difference]: Start difference. First operand 120 states and 129 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:13:15,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:13:15,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:15,678 INFO L93 Difference]: Finished difference Result 120 states and 129 transitions. [2024-09-12 19:13:15,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:13:15,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-09-12 19:13:15,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:15,679 INFO L225 Difference]: With dead ends: 120 [2024-09-12 19:13:15,679 INFO L226 Difference]: Without dead ends: 118 [2024-09-12 19:13:15,679 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:13:15,680 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 33 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:15,680 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 177 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-09-12 19:13:15,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-09-12 19:13:15,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-09-12 19:13:15,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.1578947368421053) internal successors, (110), 105 states have internal predecessors, (110), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:15,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 126 transitions. [2024-09-12 19:13:15,750 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 126 transitions. Word has length 60 [2024-09-12 19:13:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:15,751 INFO L474 AbstractCegarLoop]: Abstraction has 118 states and 126 transitions. [2024-09-12 19:13:15,751 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:13:15,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:15,751 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 126 transitions. [2024-09-12 19:13:15,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 19:13:15,752 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:15,752 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:15,767 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 19:13:15,955 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:15,956 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:15,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:15,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2070742805, now seen corresponding path program 1 times [2024-09-12 19:13:15,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:15,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196875123] [2024-09-12 19:13:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:15,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:15,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [846957231] [2024-09-12 19:13:15,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:15,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:15,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:15,969 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:15,970 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:13:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:16,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:13:16,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:16,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:18,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:18,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196875123] [2024-09-12 19:13:18,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:18,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846957231] [2024-09-12 19:13:18,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846957231] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:18,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:18,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:13:18,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737436735] [2024-09-12 19:13:18,413 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:18,414 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:13:18,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:18,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:13:18,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:13:18,414 INFO L87 Difference]: Start difference. First operand 118 states and 126 transitions. Second operand has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:18,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:18,785 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2024-09-12 19:13:18,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:13:18,786 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 61 [2024-09-12 19:13:18,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:18,787 INFO L225 Difference]: With dead ends: 118 [2024-09-12 19:13:18,787 INFO L226 Difference]: Without dead ends: 116 [2024-09-12 19:13:18,787 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:13:18,788 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 68 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:18,788 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 171 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:13:18,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-09-12 19:13:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-09-12 19:13:18,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 95 states have (on average 1.1263157894736842) internal successors, (107), 103 states have internal predecessors, (107), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 123 transitions. [2024-09-12 19:13:18,843 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 123 transitions. Word has length 61 [2024-09-12 19:13:18,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:18,843 INFO L474 AbstractCegarLoop]: Abstraction has 116 states and 123 transitions. [2024-09-12 19:13:18,843 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:18,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:18,843 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 123 transitions. [2024-09-12 19:13:18,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 19:13:18,844 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:18,844 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:18,861 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 19:13:19,048 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 19:13:19,049 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:19,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:19,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1618108327, now seen corresponding path program 1 times [2024-09-12 19:13:19,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:19,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385753790] [2024-09-12 19:13:19,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:19,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:19,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275564477] [2024-09-12 19:13:19,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:19,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:19,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:19,066 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:19,069 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:13:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:19,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 19:13:19,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:19,287 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:19,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:19,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:19,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385753790] [2024-09-12 19:13:19,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:19,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275564477] [2024-09-12 19:13:19,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275564477] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:13:19,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:13:19,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2024-09-12 19:13:19,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401093670] [2024-09-12 19:13:19,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:19,681 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:13:19,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:19,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:13:19,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:13:19,682 INFO L87 Difference]: Start difference. First operand 116 states and 123 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:13:20,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:20,442 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2024-09-12 19:13:20,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:13:20,443 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-09-12 19:13:20,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:20,444 INFO L225 Difference]: With dead ends: 121 [2024-09-12 19:13:20,444 INFO L226 Difference]: Without dead ends: 105 [2024-09-12 19:13:20,444 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:13:20,445 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 86 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:20,445 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 193 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:13:20,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-09-12 19:13:20,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2024-09-12 19:13:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 84 states have (on average 1.1071428571428572) internal successors, (93), 90 states have internal predecessors, (93), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:20,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2024-09-12 19:13:20,510 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 65 [2024-09-12 19:13:20,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:20,510 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2024-09-12 19:13:20,510 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:13:20,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:20,511 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2024-09-12 19:13:20,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 19:13:20,512 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:20,512 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:20,528 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 19:13:20,712 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:13:20,712 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:20,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1652647267, now seen corresponding path program 1 times [2024-09-12 19:13:20,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:20,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062838445] [2024-09-12 19:13:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:20,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:20,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:13:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:20,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:13:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:20,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:13:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:20,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:13:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:20,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:13:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:20,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:13:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:13:20,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:20,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062838445] [2024-09-12 19:13:20,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062838445] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:20,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009768950] [2024-09-12 19:13:20,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:20,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:20,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:20,819 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:20,821 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:13:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:20,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:13:20,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:20,902 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:13:20,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:13:20,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009768950] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:13:20,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:20,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:13:20,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136810402] [2024-09-12 19:13:20,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:13:20,903 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:13:20,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:20,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:13:20,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:13:20,903 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:13:20,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:20,959 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2024-09-12 19:13:20,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:13:20,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2024-09-12 19:13:20,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:20,960 INFO L225 Difference]: With dead ends: 103 [2024-09-12 19:13:20,960 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 19:13:20,960 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:13:20,961 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 9 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:20,961 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 105 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:13:20,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 19:13:21,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-09-12 19:13:21,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 89 states have internal predecessors, (91), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:21,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 106 transitions. [2024-09-12 19:13:21,007 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 106 transitions. Word has length 68 [2024-09-12 19:13:21,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:21,008 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 106 transitions. [2024-09-12 19:13:21,008 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:13:21,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:21,008 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 106 transitions. [2024-09-12 19:13:21,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 19:13:21,009 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:21,009 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:21,026 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 19:13:21,209 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:13:21,209 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:21,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:21,210 INFO L85 PathProgramCache]: Analyzing trace with hash -307542183, now seen corresponding path program 1 times [2024-09-12 19:13:21,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:21,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876365657] [2024-09-12 19:13:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:21,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:21,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:13:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:21,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:13:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:21,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:13:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:21,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:13:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:21,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:13:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:21,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:13:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:13:21,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:21,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876365657] [2024-09-12 19:13:21,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876365657] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:21,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313817507] [2024-09-12 19:13:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:21,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:21,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:21,282 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:21,284 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:13:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:21,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:13:21,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:13:21,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:21,413 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:13:21,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313817507] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:13:21,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:13:21,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:13:21,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553685555] [2024-09-12 19:13:21,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:21,414 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:13:21,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:21,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:13:21,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:13:21,415 INFO L87 Difference]: Start difference. First operand 102 states and 106 transitions. Second operand has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 19:13:21,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:21,498 INFO L93 Difference]: Finished difference Result 145 states and 154 transitions. [2024-09-12 19:13:21,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:13:21,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 69 [2024-09-12 19:13:21,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:21,499 INFO L225 Difference]: With dead ends: 145 [2024-09-12 19:13:21,499 INFO L226 Difference]: Without dead ends: 144 [2024-09-12 19:13:21,500 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:13:21,500 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 14 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:21,500 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 162 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:13:21,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-09-12 19:13:21,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2024-09-12 19:13:21,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 118 states have (on average 1.11864406779661) internal successors, (132), 123 states have internal predecessors, (132), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:13:21,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 151 transitions. [2024-09-12 19:13:21,569 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 151 transitions. Word has length 69 [2024-09-12 19:13:21,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:21,569 INFO L474 AbstractCegarLoop]: Abstraction has 138 states and 151 transitions. [2024-09-12 19:13:21,570 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 19:13:21,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:21,570 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 151 transitions. [2024-09-12 19:13:21,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 19:13:21,570 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:21,571 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:21,585 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 19:13:21,771 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:13:21,771 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:21,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:21,772 INFO L85 PathProgramCache]: Analyzing trace with hash -456956799, now seen corresponding path program 2 times [2024-09-12 19:13:21,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:21,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266908352] [2024-09-12 19:13:21,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:21,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:21,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559390971] [2024-09-12 19:13:21,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:13:21,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:21,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:21,785 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:21,786 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:13:21,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:13:21,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:13:21,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 19:13:21,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:22,382 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-12 19:13:22,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:22,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:22,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266908352] [2024-09-12 19:13:22,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:22,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559390971] [2024-09-12 19:13:22,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559390971] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:22,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:22,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 19:13:22,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635855986] [2024-09-12 19:13:22,883 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:22,883 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 19:13:22,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:22,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 19:13:22,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:13:22,884 INFO L87 Difference]: Start difference. First operand 138 states and 151 transitions. Second operand has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:13:23,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:23,492 INFO L93 Difference]: Finished difference Result 150 states and 159 transitions. [2024-09-12 19:13:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:13:23,493 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 78 [2024-09-12 19:13:23,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:23,494 INFO L225 Difference]: With dead ends: 150 [2024-09-12 19:13:23,494 INFO L226 Difference]: Without dead ends: 148 [2024-09-12 19:13:23,494 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:13:23,495 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 94 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:23,495 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 200 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:13:23,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-09-12 19:13:23,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 138. [2024-09-12 19:13:23,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 118 states have (on average 1.1016949152542372) internal successors, (130), 123 states have internal predecessors, (130), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:13:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 149 transitions. [2024-09-12 19:13:23,576 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 149 transitions. Word has length 78 [2024-09-12 19:13:23,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:23,576 INFO L474 AbstractCegarLoop]: Abstraction has 138 states and 149 transitions. [2024-09-12 19:13:23,577 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:13:23,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 149 transitions. [2024-09-12 19:13:23,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 19:13:23,578 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:23,578 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:23,586 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 19:13:23,778 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 19:13:23,778 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:23,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:23,779 INFO L85 PathProgramCache]: Analyzing trace with hash 363991367, now seen corresponding path program 2 times [2024-09-12 19:13:23,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:23,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205249802] [2024-09-12 19:13:23,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:23,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:23,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1656398140] [2024-09-12 19:13:23,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:13:23,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:23,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:23,793 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:23,795 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 19:13:23,849 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:13:23,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:13:23,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 19:13:23,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-12 19:13:24,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:54,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:54,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205249802] [2024-09-12 19:13:54,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:54,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656398140] [2024-09-12 19:13:54,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656398140] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:54,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:54,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:13:54,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957608280] [2024-09-12 19:13:54,205 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:54,205 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:13:54,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:54,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:13:54,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=373, Unknown=1, NotChecked=0, Total=462 [2024-09-12 19:13:54,206 INFO L87 Difference]: Start difference. First operand 138 states and 149 transitions. Second operand has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:13:54,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:54,985 INFO L93 Difference]: Finished difference Result 149 states and 157 transitions. [2024-09-12 19:13:54,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:13:54,985 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2024-09-12 19:13:54,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:54,986 INFO L225 Difference]: With dead ends: 149 [2024-09-12 19:13:54,986 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 19:13:54,987 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=126, Invalid=473, Unknown=1, NotChecked=0, Total=600 [2024-09-12 19:13:54,987 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 93 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:54,987 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 256 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:13:54,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 19:13:55,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-09-12 19:13:55,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 118 states have (on average 1.076271186440678) internal successors, (127), 123 states have internal predecessors, (127), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:13:55,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 146 transitions. [2024-09-12 19:13:55,053 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 146 transitions. Word has length 84 [2024-09-12 19:13:55,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:55,053 INFO L474 AbstractCegarLoop]: Abstraction has 138 states and 146 transitions. [2024-09-12 19:13:55,053 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:13:55,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:55,054 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 146 transitions. [2024-09-12 19:13:55,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 19:13:55,054 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:55,054 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:55,068 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 19:13:55,258 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 19:13:55,259 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:55,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:55,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1078101923, now seen corresponding path program 3 times [2024-09-12 19:13:55,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:55,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023515360] [2024-09-12 19:13:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:55,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:55,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310070858] [2024-09-12 19:13:55,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:13:55,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:55,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:55,273 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:55,274 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 19:13:55,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 19:13:55,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:13:55,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 19:13:55,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:56,343 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:56,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:36,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:36,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023515360] [2024-09-12 19:14:36,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:36,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310070858] [2024-09-12 19:14:36,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310070858] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:36,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:36,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:14:36,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779835581] [2024-09-12 19:14:36,377 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:36,377 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:14:36,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:36,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:14:36,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=396, Unknown=4, NotChecked=0, Total=506 [2024-09-12 19:14:36,379 INFO L87 Difference]: Start difference. First operand 138 states and 146 transitions. Second operand has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 14 states have internal predecessors, (82), 6 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-12 19:14:40,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:14:43,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:14:44,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:14:47,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:14:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:47,424 INFO L93 Difference]: Finished difference Result 154 states and 159 transitions. [2024-09-12 19:14:47,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:14:47,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 14 states have internal predecessors, (82), 6 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 103 [2024-09-12 19:14:47,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:47,426 INFO L225 Difference]: With dead ends: 154 [2024-09-12 19:14:47,426 INFO L226 Difference]: Without dead ends: 152 [2024-09-12 19:14:47,426 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 26.9s TimeCoverageRelationStatistics Valid=124, Invalid=472, Unknown=4, NotChecked=0, Total=600 [2024-09-12 19:14:47,427 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 94 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:47,427 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 376 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-09-12 19:14:47,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-09-12 19:14:47,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 142. [2024-09-12 19:14:47,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.0655737704918034) internal successors, (130), 127 states have internal predecessors, (130), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:14:47,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 149 transitions. [2024-09-12 19:14:47,528 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 149 transitions. Word has length 103 [2024-09-12 19:14:47,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:47,528 INFO L474 AbstractCegarLoop]: Abstraction has 142 states and 149 transitions. [2024-09-12 19:14:47,528 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 14 states have internal predecessors, (82), 6 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-12 19:14:47,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 149 transitions. [2024-09-12 19:14:47,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-12 19:14:47,529 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:47,530 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:47,536 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:47,730 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:14:47,730 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:14:47,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:47,731 INFO L85 PathProgramCache]: Analyzing trace with hash 379507433, now seen corresponding path program 3 times [2024-09-12 19:14:47,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:47,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703483844] [2024-09-12 19:14:47,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:47,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450261240] [2024-09-12 19:14:47,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:14:47,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:47,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:47,751 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:47,752 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 19:14:47,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:14:47,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:14:47,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 19:14:47,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 60 proven. 11 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-09-12 19:15:57,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:16:14,470 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-09-12 19:16:14,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:16:14,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703483844] [2024-09-12 19:16:14,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:16:14,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450261240] [2024-09-12 19:16:14,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450261240] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:16:14,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:16:14,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [20] total 29 [2024-09-12 19:16:14,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187710766] [2024-09-12 19:16:14,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:16:14,471 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:16:14,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:16:14,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:16:14,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=679, Unknown=8, NotChecked=0, Total=870 [2024-09-12 19:16:14,472 INFO L87 Difference]: Start difference. First operand 142 states and 149 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-12 19:16:21,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:16:21,926 INFO L93 Difference]: Finished difference Result 142 states and 149 transitions. [2024-09-12 19:16:21,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:16:21,927 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 109 [2024-09-12 19:16:21,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:16:21,928 INFO L225 Difference]: With dead ends: 142 [2024-09-12 19:16:21,928 INFO L226 Difference]: Without dead ends: 132 [2024-09-12 19:16:21,928 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 64.2s TimeCoverageRelationStatistics Valid=213, Invalid=834, Unknown=9, NotChecked=0, Total=1056 [2024-09-12 19:16:21,929 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 34 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:16:21,929 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 222 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-09-12 19:16:21,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-09-12 19:16:22,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-09-12 19:16:22,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 114 states have (on average 1.0350877192982457) internal successors, (118), 117 states have internal predecessors, (118), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:16:22,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 137 transitions. [2024-09-12 19:16:22,010 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 137 transitions. Word has length 109 [2024-09-12 19:16:22,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:16:22,011 INFO L474 AbstractCegarLoop]: Abstraction has 132 states and 137 transitions. [2024-09-12 19:16:22,011 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-12 19:16:22,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 137 transitions. [2024-09-12 19:16:22,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-09-12 19:16:22,011 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:16:22,012 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:16:22,018 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 19:16:22,212 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:16:22,212 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:16:22,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:22,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1601517153, now seen corresponding path program 1 times [2024-09-12 19:16:22,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:16:22,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622346633] [2024-09-12 19:16:22,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:16:22,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:16:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:16:22,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971758301] [2024-09-12 19:16:22,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:16:22,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:22,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:16:22,231 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:16:22,235 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 19:16:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:22,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:16:22,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:16:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-09-12 19:16:22,882 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:16:23,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:16:23,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622346633] [2024-09-12 19:16:23,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:16:23,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971758301] [2024-09-12 19:16:23,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971758301] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:16:23,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:16:23,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:16:23,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41952742] [2024-09-12 19:16:23,674 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:16:23,674 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:16:23,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:16:23,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:16:23,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:16:23,675 INFO L87 Difference]: Start difference. First operand 132 states and 137 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:16:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:16:24,822 INFO L93 Difference]: Finished difference Result 135 states and 140 transitions. [2024-09-12 19:16:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:16:24,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 125 [2024-09-12 19:16:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:16:24,823 INFO L225 Difference]: With dead ends: 135 [2024-09-12 19:16:24,823 INFO L226 Difference]: Without dead ends: 134 [2024-09-12 19:16:24,824 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:16:24,824 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 22 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:16:24,824 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 176 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 19:16:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-09-12 19:16:24,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-09-12 19:16:24,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 116 states have (on average 1.0344827586206897) internal successors, (120), 119 states have internal predecessors, (120), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:16:24,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 139 transitions. [2024-09-12 19:16:24,902 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 139 transitions. Word has length 125 [2024-09-12 19:16:24,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:16:24,902 INFO L474 AbstractCegarLoop]: Abstraction has 134 states and 139 transitions. [2024-09-12 19:16:24,902 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:16:24,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:24,903 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 139 transitions. [2024-09-12 19:16:24,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-09-12 19:16:24,903 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:16:24,904 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:16:24,911 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-09-12 19:16:25,104 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:25,104 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:16:25,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:25,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1994247873, now seen corresponding path program 4 times [2024-09-12 19:16:25,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:16:25,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697913756] [2024-09-12 19:16:25,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:16:25,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:16:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:16:25,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1869177679] [2024-09-12 19:16:25,122 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:16:25,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:25,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:16:25,124 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:16:25,125 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 19:16:25,300 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:16:25,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:16:25,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:16:25,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:16:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-12 19:16:27,342 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:16:27,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:16:27,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697913756] [2024-09-12 19:16:27,949 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:16:27,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869177679] [2024-09-12 19:16:27,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869177679] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:16:27,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:16:27,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 19:16:27,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013200033] [2024-09-12 19:16:27,950 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:16:27,950 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:16:27,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:16:27,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:16:27,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:16:27,951 INFO L87 Difference]: Start difference. First operand 134 states and 139 transitions. Second operand has 15 states, 14 states have (on average 7.285714285714286) internal successors, (102), 15 states have internal predecessors, (102), 7 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:16:33,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:16:37,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:16:38,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:16:38,103 INFO L93 Difference]: Finished difference Result 147 states and 153 transitions. [2024-09-12 19:16:38,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:16:38,103 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.285714285714286) internal successors, (102), 15 states have internal predecessors, (102), 7 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 128 [2024-09-12 19:16:38,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:16:38,105 INFO L225 Difference]: With dead ends: 147 [2024-09-12 19:16:38,105 INFO L226 Difference]: Without dead ends: 146 [2024-09-12 19:16:38,106 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:16:38,107 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 69 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:16:38,107 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 152 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 273 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2024-09-12 19:16:38,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-09-12 19:16:38,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2024-09-12 19:16:38,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 119 states have (on average 1.0336134453781514) internal successors, (123), 122 states have internal predecessors, (123), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:16:38,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 142 transitions. [2024-09-12 19:16:38,208 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 142 transitions. Word has length 128 [2024-09-12 19:16:38,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:16:38,208 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 142 transitions. [2024-09-12 19:16:38,208 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.285714285714286) internal successors, (102), 15 states have internal predecessors, (102), 7 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:16:38,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 142 transitions. [2024-09-12 19:16:38,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-09-12 19:16:38,215 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:16:38,215 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:16:38,231 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-09-12 19:16:38,416 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:38,416 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:16:38,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:38,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1030119369, now seen corresponding path program 2 times [2024-09-12 19:16:38,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:16:38,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707951988] [2024-09-12 19:16:38,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:16:38,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:16:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:38,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:16:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:38,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:16:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:38,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:16:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:38,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:16:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:38,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:16:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:38,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:16:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:38,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:16:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:38,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 19:16:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:38,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 19:16:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:38,615 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-09-12 19:16:38,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:16:38,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707951988] [2024-09-12 19:16:38,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707951988] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:16:38,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981490318] [2024-09-12 19:16:38,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:16:38,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:38,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:16:38,618 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:16:38,619 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 19:16:38,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:16:38,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:16:38,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:16:38,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:16:38,855 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-09-12 19:16:38,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:16:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-09-12 19:16:39,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981490318] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:16:39,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:16:39,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-12 19:16:39,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641670678] [2024-09-12 19:16:39,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:16:39,070 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:16:39,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:16:39,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:16:39,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:16:39,071 INFO L87 Difference]: Start difference. First operand 137 states and 142 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:16:39,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:16:39,228 INFO L93 Difference]: Finished difference Result 137 states and 142 transitions. [2024-09-12 19:16:39,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:16:39,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 144 [2024-09-12 19:16:39,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:16:39,229 INFO L225 Difference]: With dead ends: 137 [2024-09-12 19:16:39,232 INFO L226 Difference]: Without dead ends: 136 [2024-09-12 19:16:39,232 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:16:39,232 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 52 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:16:39,233 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 97 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:16:39,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-09-12 19:16:39,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-09-12 19:16:39,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 119 states have (on average 1.0252100840336134) internal successors, (122), 121 states have internal predecessors, (122), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:16:39,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 141 transitions. [2024-09-12 19:16:39,357 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 141 transitions. Word has length 144 [2024-09-12 19:16:39,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:16:39,357 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 141 transitions. [2024-09-12 19:16:39,357 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:16:39,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:39,358 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 141 transitions. [2024-09-12 19:16:39,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-09-12 19:16:39,358 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:16:39,359 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:16:39,376 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-09-12 19:16:39,563 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:39,564 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:16:39,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:39,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1610818501, now seen corresponding path program 1 times [2024-09-12 19:16:39,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:16:39,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501376317] [2024-09-12 19:16:39,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:16:39,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:16:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:16:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:16:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:16:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:16:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:16:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:16:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:16:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 19:16:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 19:16:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,866 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 150 proven. 58 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-12 19:16:39,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:16:39,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501376317] [2024-09-12 19:16:39,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501376317] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:16:39,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594313705] [2024-09-12 19:16:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:16:39,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:39,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:16:39,869 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:16:39,870 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 19:16:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:16:39,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:16:40,529 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-12 19:16:40,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:16:40,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594313705] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:16:40,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:16:40,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 16 [2024-09-12 19:16:40,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391170566] [2024-09-12 19:16:40,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:16:40,531 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:16:40,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:16:40,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:16:40,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:16:40,533 INFO L87 Difference]: Start difference. First operand 136 states and 141 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 19:16:40,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:16:40,739 INFO L93 Difference]: Finished difference Result 150 states and 155 transitions. [2024-09-12 19:16:40,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:16:40,740 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) Word has length 148 [2024-09-12 19:16:40,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:16:40,740 INFO L225 Difference]: With dead ends: 150 [2024-09-12 19:16:40,740 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:16:40,741 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:16:40,741 INFO L434 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:16:40,742 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:16:40,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:16:40,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:16:40,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 19:16:40,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:16:40,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 148 [2024-09-12 19:16:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:16:40,743 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:16:40,743 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 19:16:40,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:16:40,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:16:40,746 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 31 remaining) [2024-09-12 19:16:40,747 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2024-09-12 19:16:40,747 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2024-09-12 19:16:40,747 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2024-09-12 19:16:40,747 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2024-09-12 19:16:40,747 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2024-09-12 19:16:40,747 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2024-09-12 19:16:40,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2024-09-12 19:16:40,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2024-09-12 19:16:40,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2024-09-12 19:16:40,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2024-09-12 19:16:40,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2024-09-12 19:16:40,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2024-09-12 19:16:40,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2024-09-12 19:16:40,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2024-09-12 19:16:40,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2024-09-12 19:16:40,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2024-09-12 19:16:40,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2024-09-12 19:16:40,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2024-09-12 19:16:40,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2024-09-12 19:16:40,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2024-09-12 19:16:40,750 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 31 remaining) [2024-09-12 19:16:40,750 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 31 remaining) [2024-09-12 19:16:40,750 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2024-09-12 19:16:40,750 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2024-09-12 19:16:40,750 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2024-09-12 19:16:40,750 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2024-09-12 19:16:40,751 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2024-09-12 19:16:40,751 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2024-09-12 19:16:40,751 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2024-09-12 19:16:40,751 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 31 remaining) [2024-09-12 19:16:40,766 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-09-12 19:16:40,951 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:40,954 INFO L408 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:16:40,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.